Give the working of nephron.

Hi, I have a question and I hope anyone could answer it:

(i) Give the working of nephron

(ii) What kind of urine (concentration) is produced in human body ?

1 Answer

  1. (i) In a nephron, the blood .enters by afferent arteriole and is filtered through the glomerulus. The filtrate is passed into the Bowman’s capsule; by the process called ultrafiltration. The filtrate contain useful products like glucose, amino acids, salts etc. The plasma proteins, blood corpuscles and platelets are retained in the glomerular mass. The filtrate now passes through Henle’s loop where selective reabsorption of useful products takes place but urea and uric acid are not absorbed. Now the excretory substances are secreted by proximal and distal convoluted tubule and urine is formed.

    (ii) Hypertonic.

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